Are Bigger Brains Better?

Are Bigger Brains Better?

Attempts to relate brain size to behaviour and cognition have rarely integrated information from insects with that from vertebrates. Many insects, however, demonstrate that highly differentiated motor repertoires, extensive social structures and cognition are possible with very small brains, emphasising that we need to understand the neural circuits, not just the size of brain regions, which un...

Bigger isn't better

H IV-1 induces e x t e n s i v e changes in its host cell's nuclear pores, Monette et al. reveal. Like all viruses, HIV-1 hijacks the molecular machinery of its host cell to drive its own replication. One process disrupted by the virus is protein transport between the nucleus and cytoplasm. For example, HIV-1 prevents an RNA-binding protein called hnRNP A1 from entering the nucleus so that it c...

Bigger and better things.

Is bigger better?

What is medical science all about? Surely it is about the value chain, which begins with basic research and ends—if there is an end— with a useful product. There is a widespread perception that scientists do a lot of basic research, but neglect the application of their findings. To remedy this, a number of organizations and philanthropists have become dedicated advocates of applied or translati...

Why Bigger Windows Are Better Than Smaller Ones

We investigate the use of multi-term query concepts to improve the performance of text-retrieval systems that accept \natural-language" queries. A relevance feedback process is explained that massively expands an initial query with single and multi-term concepts. The multi-term concepts are modelled as a set of words appearing within windows of varying sizes. Experimental results suggest that w...